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linux/include/asm-ppc/mpc52xx_psc.h
Sylvain Munaut 07e6e93136 [POWERPC] mpc52xx: Update mpc52xx_psc structure with B revision changes 
On the mpc5200b the ccr register is 32 bits wide while on the
mpc5200 it's only 16 bits. It's up to the driver to use the
correct format depending on the chip it's running on.

The 5200b also offers some more registers & status in AC97
mode. Again, if not running on a 5200b the driver should not
use those.

Signed-off-by: Sylvain Munaut <tnt@246tNt.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2007-10-16 17:09:27 -06:00

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/*
* include/asm-ppc/mpc52xx_psc.h
*
* Definitions of consts/structs to drive the Freescale MPC52xx OnChip
* PSCs. Theses are shared between multiple drivers since a PSC can be
* UART, AC97, IR, I2S, ... So this header is in asm-ppc.
*
*
* Maintainer : Sylvain Munaut <tnt@246tNt.com>
*
* Based/Extracted from some header of the 2.4 originally written by
* Dale Farnsworth <dfarnsworth@mvista.com>
*
* Copyright (C) 2004 Sylvain Munaut <tnt@246tNt.com>
* Copyright (C) 2003 MontaVista, Software, Inc.
*
* This file is licensed under the terms of the GNU General Public License
* version 2. This program is licensed "as is" without any warranty of any
* kind, whether express or implied.
*/
#ifndef __ASM_MPC52xx_PSC_H__
#define __ASM_MPC52xx_PSC_H__
#include <asm/types.h>
/* Max number of PSCs */
#define MPC52xx_PSC_MAXNUM 6
/* Programmable Serial Controller (PSC) status register bits */
#define MPC52xx_PSC_SR_UNEX_RX 0x0001
#define MPC52xx_PSC_SR_DATA_VAL 0x0002
#define MPC52xx_PSC_SR_DATA_OVR 0x0004
#define MPC52xx_PSC_SR_CMDSEND 0x0008
#define MPC52xx_PSC_SR_CDE 0x0080
#define MPC52xx_PSC_SR_RXRDY 0x0100
#define MPC52xx_PSC_SR_RXFULL 0x0200
#define MPC52xx_PSC_SR_TXRDY 0x0400
#define MPC52xx_PSC_SR_TXEMP 0x0800
#define MPC52xx_PSC_SR_OE 0x1000
#define MPC52xx_PSC_SR_PE 0x2000
#define MPC52xx_PSC_SR_FE 0x4000
#define MPC52xx_PSC_SR_RB 0x8000
/* PSC Command values */
#define MPC52xx_PSC_RX_ENABLE 0x0001
#define MPC52xx_PSC_RX_DISABLE 0x0002
#define MPC52xx_PSC_TX_ENABLE 0x0004
#define MPC52xx_PSC_TX_DISABLE 0x0008
#define MPC52xx_PSC_SEL_MODE_REG_1 0x0010
#define MPC52xx_PSC_RST_RX 0x0020
#define MPC52xx_PSC_RST_TX 0x0030
#define MPC52xx_PSC_RST_ERR_STAT 0x0040
#define MPC52xx_PSC_RST_BRK_CHG_INT 0x0050
#define MPC52xx_PSC_START_BRK 0x0060
#define MPC52xx_PSC_STOP_BRK 0x0070
/* PSC TxRx FIFO status bits */
#define MPC52xx_PSC_RXTX_FIFO_ERR 0x0040
#define MPC52xx_PSC_RXTX_FIFO_UF 0x0020
#define MPC52xx_PSC_RXTX_FIFO_OF 0x0010
#define MPC52xx_PSC_RXTX_FIFO_FR 0x0008
#define MPC52xx_PSC_RXTX_FIFO_FULL 0x0004
#define MPC52xx_PSC_RXTX_FIFO_ALARM 0x0002
#define MPC52xx_PSC_RXTX_FIFO_EMPTY 0x0001
/* PSC interrupt mask bits */
#define MPC52xx_PSC_IMR_TXRDY 0x0100
#define MPC52xx_PSC_IMR_RXRDY 0x0200
#define MPC52xx_PSC_IMR_DB 0x0400
#define MPC52xx_PSC_IMR_IPC 0x8000
/* PSC input port change bit */
#define MPC52xx_PSC_CTS 0x01
#define MPC52xx_PSC_DCD 0x02
#define MPC52xx_PSC_D_CTS 0x10
#define MPC52xx_PSC_D_DCD 0x20
/* PSC mode fields */
#define MPC52xx_PSC_MODE_5_BITS 0x00
#define MPC52xx_PSC_MODE_6_BITS 0x01
#define MPC52xx_PSC_MODE_7_BITS 0x02
#define MPC52xx_PSC_MODE_8_BITS 0x03
#define MPC52xx_PSC_MODE_BITS_MASK 0x03
#define MPC52xx_PSC_MODE_PAREVEN 0x00
#define MPC52xx_PSC_MODE_PARODD 0x04
#define MPC52xx_PSC_MODE_PARFORCE 0x08
#define MPC52xx_PSC_MODE_PARNONE 0x10
#define MPC52xx_PSC_MODE_ERR 0x20
#define MPC52xx_PSC_MODE_FFULL 0x40
#define MPC52xx_PSC_MODE_RXRTS 0x80
#define MPC52xx_PSC_MODE_ONE_STOP_5_BITS 0x00
#define MPC52xx_PSC_MODE_ONE_STOP 0x07
#define MPC52xx_PSC_MODE_TWO_STOP 0x0f
#define MPC52xx_PSC_RFNUM_MASK 0x01ff
/* Structure of the hardware registers */
struct mpc52xx_psc {
u8 mode; /* PSC + 0x00 */
u8 reserved0[3];
union { /* PSC + 0x04 */
u16 status;
u16 clock_select;
} sr_csr;
#define mpc52xx_psc_status sr_csr.status
#define mpc52xx_psc_clock_select sr_csr.clock_select
u16 reserved1;
u8 command; /* PSC + 0x08 */
u8 reserved2[3];
union { /* PSC + 0x0c */
u8 buffer_8;
u16 buffer_16;
u32 buffer_32;
} buffer;
#define mpc52xx_psc_buffer_8 buffer.buffer_8
#define mpc52xx_psc_buffer_16 buffer.buffer_16
#define mpc52xx_psc_buffer_32 buffer.buffer_32
union { /* PSC + 0x10 */
u8 ipcr;
u8 acr;
} ipcr_acr;
#define mpc52xx_psc_ipcr ipcr_acr.ipcr
#define mpc52xx_psc_acr ipcr_acr.acr
u8 reserved3[3];
union { /* PSC + 0x14 */
u16 isr;
u16 imr;
} isr_imr;
#define mpc52xx_psc_isr isr_imr.isr
#define mpc52xx_psc_imr isr_imr.imr
u16 reserved4;
u8 ctur; /* PSC + 0x18 */
u8 reserved5[3];
u8 ctlr; /* PSC + 0x1c */
u8 reserved6[3];
u32 ccr; /* PSC + 0x20 */
u32 ac97_slots; /* PSC + 0x24 */
u32 ac97_cmd; /* PSC + 0x28 */
u32 ac97_data; /* PSC + 0x2c */
u8 ivr; /* PSC + 0x30 */
u8 reserved8[3];
u8 ip; /* PSC + 0x34 */
u8 reserved9[3];
u8 op1; /* PSC + 0x38 */
u8 reserved10[3];
u8 op0; /* PSC + 0x3c */
u8 reserved11[3];
u32 sicr; /* PSC + 0x40 */
u8 ircr1; /* PSC + 0x44 */
u8 reserved13[3];
u8 ircr2; /* PSC + 0x44 */
u8 reserved14[3];
u8 irsdr; /* PSC + 0x4c */
u8 reserved15[3];
u8 irmdr; /* PSC + 0x50 */
u8 reserved16[3];
u8 irfdr; /* PSC + 0x54 */
u8 reserved17[3];
u16 rfnum; /* PSC + 0x58 */
u16 reserved18;
u16 tfnum; /* PSC + 0x5c */
u16 reserved19;
u32 rfdata; /* PSC + 0x60 */
u16 rfstat; /* PSC + 0x64 */
u16 reserved20;
u8 rfcntl; /* PSC + 0x68 */
u8 reserved21[5];
u16 rfalarm; /* PSC + 0x6e */
u16 reserved22;
u16 rfrptr; /* PSC + 0x72 */
u16 reserved23;
u16 rfwptr; /* PSC + 0x76 */
u16 reserved24;
u16 rflrfptr; /* PSC + 0x7a */
u16 reserved25;
u16 rflwfptr; /* PSC + 0x7e */
u32 tfdata; /* PSC + 0x80 */
u16 tfstat; /* PSC + 0x84 */
u16 reserved26;
u8 tfcntl; /* PSC + 0x88 */
u8 reserved27[5];
u16 tfalarm; /* PSC + 0x8e */
u16 reserved28;
u16 tfrptr; /* PSC + 0x92 */
u16 reserved29;
u16 tfwptr; /* PSC + 0x96 */
u16 reserved30;
u16 tflrfptr; /* PSC + 0x9a */
u16 reserved31;
u16 tflwfptr; /* PSC + 0x9e */
};
#endif /* __ASM_MPC52xx_PSC_H__ */
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